Frontier Fiji Marine Environmental Research - Frontier-publications ...

More documents

Recommendations

Info

Figure 6: Biomass for each trophic group in each region and phase. In Somosomo and Nawaikama the amount of herbivorous fish increased between 2006 and 2007 (Figure 6). In particular, piscivores are at the top of the food web, they tend to be fewer in number but larger in size. They were recorded in all regions; however, only in Nukuyaweni was there a notable increase in piscivore biomass. By contrast, invertivores showed a decrease in abundance from 2006 to 2007 across all areas. 4.6 Algal abundance Algal cover was calculated using an arbitrary scale by trained observers. A range of 1 to 10 was used to indicate abundance of algal growth across the transect area covering 100m². 20
Figure 7: Algae abundance across the regions and phase. Nawaikama and Nukuyaweni showed a decrease in algae abundance from 2006 to 2007. By contrast, Somosomo doubled the total abundance of algae coverage from the initial monitoring (Figure 7). However, there was no significant difference between regions (F=0.624, p=0.542) or time periods (F=0.294, p=0.591). 4.7 Invertebrate Abundance The abundance of key invertebrates was measured as the number of individuals encountered on 100m² transects. All regions showed an increase in invertebrate abundance between 2006 and 2007 (Figure 8). However, ANOVA did not reveal a significant difference between regions (F=1.928, p=0.187). Nudibranchs were only recorded during winter 2007 but no significant difference was found between regions (ANOVA, F=2.153, p=0.197). 21
Page 1: Frontier Fiji Marine Environmental
Page 4 and 5: Suggested Technical Paper citation:
Page 6 and 7: ACKNOWLEDGEMENTS This report is the
Page 8 and 9: TABLE OF CONTENTS ACKNOWLEDGEMENTS
Page 10 and 11: 1. Introduction 1.1 Environmental a
Page 12 and 13: as rainforests, grasslands, mangrov
Page 14 and 15: coverage, fish data, invertebrate s
Page 16 and 17: 70 60 50 40 30 20 Hard Coral Covera
Page 18 and 19: Fish Biomass (Kg) 180 160 140 120 1
Page 22 and 23: Figure 8: Abundance of key inverteb
Page 24 and 25: commercially important species whic
Page 26 and 27: 5.4 Invertebrate Abundance Inverteb
Page 28 and 29: investigate changes on a specific s
Page 30: Walters, C. Pauly, D. and Christens

Frontier Fiji Marine Environmental Research - Frontier-publications ...

Create successful ePaper yourself

Delete template?

Save as template?